How to install Gnome GUI on RHEL/Centos 7

Make sure your yum repositories is configured. then, install the following # yum groupinstall “GNOME Desktop” “Graphical Administration Tools” OR # yum groupinstall “Server with GUI” Next, you want to enable default runlevel as the graphical target (this would be /etc/inittab on Centos 6) by running the below # ln -sf /lib/systemd/system/ /etc/systemd/system/ And then …

How to open port 80 on Centos7

To open port 80 in the firewall, run the following……….. [root@srv ]# firewall-cmd –permanent –zone=public –add-port=80/tcp Next, you want to reload the firewall with the following command [root@srv ]# firewall-cmd –reload You can verify this by running the following, [root@srv ]# firewall-cmd –zone=public –query-port=80/tcp